The common characteristic features of echinoderms. Concept introduction: Echinoderms are included under the clade deuterostomes along with chordates. Deuterostomes are those animals in which anus develop from first opening in embryo. Echinoderms are the invertebrate animals which includes the most colorful and distinctive sea creatures.

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Chapter 21.9, Problem 1MC

Summary Introduction

To determine:

The common characteristic features of echinoderms.

Concept introduction:

Echinoderms are included under the clade deuterostomes along with chordates. Deuterostomes are those animals in which anus develop from first opening in embryo. Echinoderms are the invertebrate animals which includes the most colorful and distinctive sea creatures.

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